Moog-style 4-pole resonant ladder filter (TPT, zero-delay feedback). More...

#include "DspMath.h"
#include "AudioSpec.h"
#include "AudioBuffer.h"
#include "DenormalGuard.h"
#include <algorithm>
#include <array>
#include <atomic>
#include <cmath>

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Classes
class	dspark::LadderFilter< T >
	4-pole resonant ladder filter (Moog topology, TPT discretization). More...

struct	dspark::LadderFilter< T >::ChannelState

Namespaces
namespace	dspark
	Main namespace for the DSPark framework.

Detailed Description

Moog-style 4-pole resonant ladder filter (TPT, zero-delay feedback).

Four cascaded TPT one-pole stages (Zavalishin) with the global feedback loop resolved analytically per sample - no unit delay in the loop, so cutoff and resonance match the analog prototype at the prewarped frequency.

Threading: parameter setters/getters are lock-free atomics (any thread). prepare/reset are setup-time; processBlock/processSample belong to the owning audio thread. processBlock installs a DenormalGuard; per-sample callers are expected to guard their own callback (framework convention) - resonant tails decay through the denormal range otherwise.

Dependencies: DspMath.h, AudioSpec.h, AudioBuffer.h, DenormalGuard.h.

Definition in file LadderFilter.h.

Classes

Namespaces

Detailed Description